Correlation Between TILs and Blood Cell Counts in Triple Negative Breast Cancer Patients

This study is investigating whether the number and type of immune cells in breast cancer tissue (called tumor-infiltrating lymphocytes, or TILs) are related to changes in routine blood test results in women with triple-negative breast cancer — an aggressive form of the disease that lacks three common hormone receptors. **You may be eligible if...** - You are female and over 18 years old - You have been diagnosed with triple-negative breast cancer that has not spread to distant organs - You have received chemotherapy, surgery, and radiation therapy - You can understand French - You are enrolled in French social security **You may NOT be eligible if...** - You are male - Tumor tissue samples from before treatment are not available - Blood test results from the beginning of your treatment are not available Talk to your doctor to see if this trial is right for you.